www.pudn.com > realtimeline.zip > LineChartCtrl.h

// LineChartCtrl.h : header file 
// 
// Written by Yuheng Zhao (yuheng@ministars.com)  
// http://www.ministars.com 
// The original idea and part of the code from Ken C. Len's CHistogramCtrl 
// http://www.codeguru.com/controls/histogram_control.shtml 
// 
// Copyright (c) 1998. 
// 
// This code may be used in compiled form in any way you desire. This 
// file may be redistributed unmodified by any means PROVIDING it is  
// not sold for profit without the authors written consent, and  
// providing that this notice and the authors name is included. If  
// the source code in  this file is used in any commercial application  
// then a simple email would be nice. 
// 
// This file is provided "as is" with no expressed or implied warranty. 
// The author accepts no liability if it causes any damage whatsoever. 
// It's free - so you get what you pay for. 
// 
 
#ifndef __LINECHARTCTRL_H__ 
#define __LINECHARTCTRL_H__ 
 
#include  
 
class CLineChartItem:public CObject 
{ 
public: 
	CLineChartItem() {;} 
 
	COLORREF m_colorLine; 
	UINT     m_nLower;		// lower bounds 
	UINT     m_nUpper;		// upper bounds 
	 
	UINT     m_nPos;		// current position within bounds 
	UINT     m_nOldPos;		// last position within bounds 
}; 
 
typedef CTypedPtrArray  CItemArray; 
 
///////////////////////////////////////////////////////////////////////////// 
// CLineChartCtrl window 
 
class CLineChartCtrl : public CWnd 
{ 
// Construction 
public: 
	static BOOL RegisterWndClass(HINSTANCE hInstance); 
 
	CLineChartCtrl(); 
	UINT m_nVertical; 
 
// Attributes 
public: 
	CItemArray m_items; 
	UINT SetPos(int nIndex, UINT nPos); 
	void InvalidateCtrl(); 
	void DrawSpike(); 
 
	// Operations 
public: 
// Overrides 
	// ClassWizard generated virtual function overrides 
	//{{AFX_VIRTUAL(CLineChartCtrl) 
	public: 
	//}}AFX_VIRTUAL 
 
// Implementation 
public: 
	void Go(); 
	BOOL Add(COLORREF color, UINT Upper, UINT Lower ); 
	virtual ~CLineChartCtrl(); 
 
	// Generated message map functions 
protected: 
	//{{AFX_MSG(CLineChartCtrl) 
	afx_msg void OnPaint(); 
	//}}AFX_MSG 
	DECLARE_MESSAGE_MAP() 
 
	CDC      m_MemDC; 
	CBitmap  m_Bitmap; 
}; 
 
///////////////////////////////////////////////////////////////////////////// 
#endif